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s/\bgl_format\b/mesa_format/g. Use better name for Mesa Formats enum
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None of the remaining FEATURE_x symbols in mfeatures.h are used anymore.
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
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Fix-up the texel fetch functions so that they handle 3D coords (as used for
array textures) and remove the "f_2d" part from their names.
Helps fix swrast crashes in piglit's copyteximage test. More to come.
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This also involves passing swrast_texture_image instead of gl_texture_image
into all the fetch functions.
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The encoding/decoding algorithms are shared with RGTC.
Thanks to some magic with the base format, the RGTC texstore functions work
for LATC too.
swrast passes the related piglit tests besides two things:
- The alpha channel is wrong (it's always 1), however the incorrect alpha
channel makes some other tests fail too, so I guess it's unrelated to LATC.
- Signed LATC fetches aren't correct yet (signed values are clamped to [0,1]),
however RGTC has the same problem.
Further testing (with other of my patches) shows that hardware drivers
and softpipe work.
BTW, ETQW uses this extension.
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This adds support for the RGTC unsigned and signed
texture storage and fetch methods.
the code is a port of the DXT5 alpha compression code.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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